Move ReactDOMFactories into separate package (#8356)

- Update examples to no longer use React.DOM
- Add package and documentation entries for react-addons-dom-factories
- Update dom-factories readme
- Set up proxy to intercept React.DOM usage
- Update ReactDOM children tests to use createElement
- Add more specific warning assertion for React DOM factories
- Do not use expectDev in ReactDOMFactories tests

docs/docs/addons.md

@@ -23,6 +23,7 @@ The add-ons below are considered legacy and their use is discouraged.
 - [`PureRenderMixin`](pure-render-mixin.html). Use [`React.PureComponent`](/react/docs/react-api.html#react.purecomponent) instead.
 - [`shallowCompare`](shallow-compare.html), a helper function that performs a shallow comparison for props and state in a component to decide if a component should update.
 - [`update`](update.html). Use [`kolodny/immutability-helper`](https://github.com/kolodny/immutability-helper) instead.
+- [`ReactDOMFactories`](dom-factories.html), pre-configured DOM factories to make React easier to use without JSX.
 
 ### Deprecated Add-ons
 

packages/react-dom-factories/README.md

@@ -0,0 +1,20 @@
+# `react-addons-dom-factories`
+
+> Note:
+> `ReactDOMFactories` is a legacy add-on. Consider using
+> `React.createFactory` or JSX instead.
+
+Prior to version 16.0.0, React maintained a whitelist of
+pre-configured DOM factories. These predefined factories have been
+moved to the `react-addons-dom-factories` library.
+
+## Example
+
+```javascript
+import ReactDOM from 'react-dom';
+import DOM from 'react-addons-dom-factories'; // ES6
+
+const greeting = DOM.div({ className: 'greeting' }, DOM.p(null, 'Hello, world!'));
+
+ReactDOM.render(greeting, document.getElementById('app'))
+```

packages/react-dom-factories/index.js

@@ -0,0 +1,3 @@
+'use strict';
+
+module.exports = require('./lib/ReactDOMFactories');

packages/react-dom-factories/package.json

@@ -0,0 +1,25 @@
+{
+  "name": "react-dom-factories",
+  "version": "16.0.0-alpha",
+  "description": "React package for DOM factory methods.",
+  "main": "index.js",
+  "repository": "facebook/react",
+  "keywords": [
+    "react"
+  ],
+  "license": "BSD-3-Clause",
+  "bugs": {
+    "url": "https://github.com/facebook/react/issues"
+  },
+  "homepage": "https://facebook.github.io/react/",
+  "peerDependencies": {
+    "react": "^16.0.0-alpha"
+  },
+  "files": [
+    "LICENSE",
+    "PATENTS",
+    "README.md",
+    "index.js",
+    "lib/"
+  ]
+}

src/isomorphic/classic/element/ReactDOMFactories.js → src/addons/ReactDOMFactories.js

@@ -26,7 +26,6 @@ if (__DEV__) {
 
 /**
  * Creates a mapping from supported HTML tags to `ReactDOMComponent` classes.
- * This is also accessible via `React.DOM`.
  *
  * @public
  */

src/addons/__tests__/ReactDOMFactories-test.js

@@ -0,0 +1,39 @@
+/**
+ * Copyright 2013-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+var React = require('React');
+var {div} = require('ReactDOMFactories');
+
+describe('ReactDOMFactories', () => {
+  it('allow factories to be called without warnings', () => {
+    spyOn(console, 'error');
+    var element = div();
+    expect(element.type).toBe('div');
+    expect(console.error).not.toHaveBeenCalled();
+  });
+
+  it('warns once when accessing React.DOM methods', () => {
+    spyOn(console, 'error');
+
+    var a = React.DOM.a();
+    var p = React.DOM.p();
+
+    expect(a.type).toBe('a');
+    expect(p.type).toBe('p');
+
+    expect(console.error).toHaveBeenCalledTimes(1);
+    expect(console.error.calls.first().args[0]).toContain(
+      'Warning: Accessing factories like React.DOM.a has been deprecated',
+    );
+  });
+});

src/isomorphic/React.js

@@ -117,6 +117,27 @@ if (__DEV__) {
       },
     });
   }
+
+  // React.DOM factories are deprecated. Wrap these methods so that
+  // invocations of the React.DOM namespace and alert users to switch
+  // to the `react-addons-dom-factories` package.
+  React.DOM = {};
+  var warnedForFactories = false;
+  Object.keys(ReactDOMFactories).forEach(function(factory) {
+    React.DOM[factory] = function(...args) {
+      if (!warnedForFactories) {
+        warning(
+          false,
+          'Accessing factories like React.DOM.%s has been deprecated ' +
+            'and will be removed in the future. Use the ' +
+            'react-addons-dom-factories package instead.',
+          factory,
+        );
+        warnedForFactories = true;
+      }
+      return ReactDOMFactories[factory](...args);
+    };
+  });
 }
 
 module.exports = React;

src/isomorphic/classic/element/__tests__/ReactElement-test.js

@@ -316,7 +316,7 @@ describe('ReactElement', () => {
     expect(React.isValidElement(true)).toEqual(false);
     expect(React.isValidElement({})).toEqual(false);
     expect(React.isValidElement('string')).toEqual(false);
-    expect(React.isValidElement(React.DOM.div)).toEqual(false);
+    expect(React.isValidElement(React.createFactory('div'))).toEqual(false);
     expect(React.isValidElement(Component)).toEqual(false);
     expect(React.isValidElement({type: 'div', props: {}})).toEqual(false);
 
@@ -459,7 +459,7 @@ describe('ReactElement', () => {
     expect(React.isValidElement(true)).toEqual(false);
     expect(React.isValidElement({})).toEqual(false);
     expect(React.isValidElement('string')).toEqual(false);
-    expect(React.isValidElement(React.DOM.div)).toEqual(false);
+    expect(React.isValidElement(React.createFactory('div'))).toEqual(false);
     expect(React.isValidElement(Component)).toEqual(false);
     expect(React.isValidElement({type: 'div', props: {}})).toEqual(false);
 
@@ -520,7 +520,8 @@ describe('comparing jsx vs .createFactory() vs .createElement()', () => {
       var childFactory = React.createFactory(Child);
       class Parent extends React.Component {
         render() {
-          return React.DOM.div(
+          return React.createElement(
+            'div',
             {},
             childFactory({ref: 'child', foo: 'foo value'}, 'children value'),
           );
@@ -555,7 +556,8 @@ describe('comparing jsx vs .createFactory() vs .createElement()', () => {
     beforeEach(() => {
       class Parent extends React.Component {
         render() {
-          return React.DOM.div(
+          return React.createElement(
+            'div',
             {},
             React.createElement(
               Child,

src/renderers/dom/shared/__tests__/ReactDOMComponent-test.js

@@ -1082,7 +1082,8 @@ describe('ReactDOMComponent', () => {
     it('should properly escape text content and attributes values', () => {
       expect(
         ReactDOMServer.renderToStaticMarkup(
-          React.DOM.div(
+          React.createElement(
+            'div',
             {
               title: '\'"<>&',
               style: {